My standards: Minimum Frequency: 122 MHz (Good way to save battery power because when your phone is let alone and not being used it will run at this speed, most people have 245 MHz set as their minimum, but I'd suggest them to change it to 122 MHz. It makes no difference in your phones speed and performance, but it will save power because when its not in use it will run at the lowest speed which is 122 MHz and save you a good amount of Juice.) Maximum Frequency: 787 MHz (This is the speed my Optimus M is the most stable at, I've used 806 Mhz as well but some applications don't work properly on it and when I run them it would cause the phone to reboot, and when I have my frequency set to 787 MHz everything works and runs smoothly.) So what is your preferred CPU standards to have the best performance and stability on your Optimus M? By the way, my ROM is Cyanogenmod 7.1 by reppard, out of all 3 CM7 ROMs, I found reppard's to be most stable.